Defining some agent terms

Now that I’m actively shopping my book to agents, I’ve had to do a lot of research. Some of the lingo I’m coming across in agents’ bios even I don’t understand, and I’ve researched agents before. Yesterday, I had to Google what speculative fiction was. (FYI: it’s any fiction that imagines a different world–sci fi, fantasy, historical fiction, time travel, etc. In other words, all the cool stuff.)